EP0115345B1 - Procédé de dédoublement d'esters d'acides imino-alpha-carboxyliques bicycliques optiquement actifs et utilisation des composés ainsi productibles pour la synthèse de carboxyalkyldipeptides - Google Patents
Procédé de dédoublement d'esters d'acides imino-alpha-carboxyliques bicycliques optiquement actifs et utilisation des composés ainsi productibles pour la synthèse de carboxyalkyldipeptides Download PDFInfo
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- EP0115345B1 EP0115345B1 EP84100858A EP84100858A EP0115345B1 EP 0115345 B1 EP0115345 B1 EP 0115345B1 EP 84100858 A EP84100858 A EP 84100858A EP 84100858 A EP84100858 A EP 84100858A EP 0115345 B1 EP0115345 B1 EP 0115345B1
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WTDRDQBEARUVNC-UHFFFAOYSA-N L-Dopa Natural products OC(=O)C(N)CC1=CC=C(O)C(O)=C1 WTDRDQBEARUVNC-UHFFFAOYSA-N 0.000 description 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 238000005684 Liebig rearrangement reaction Methods 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Chemical class NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000019486 Sunflower oil Nutrition 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 125000000738 acetamido group Chemical group [H]C([H])([H])C(=O)N([H])[*] 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 125000004442 acylamino group Chemical group 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000004279 alanine Nutrition 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- ZGUNAGUHMKGQNY-UHFFFAOYSA-N alpha-phenylglycine Chemical compound OC(=O)C(N)C1=CC=CC=C1 ZGUNAGUHMKGQNY-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229940044094 angiotensin-converting-enzyme inhibitor Drugs 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 230000003276 anti-hypertensive effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 125000003435 aroyl group Chemical group 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 125000004618 benzofuryl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- HLXCXOQXUDRJLF-JKBZPBJLSA-N benzyl (2s,3as,6as)-1,2,3,3a,4,5,6,6a-octahydrocyclopenta[b]pyrrole-2-carboxylate;hydrochloride Chemical compound Cl.O=C([C@H]1N[C@H]2CCC[C@H]2C1)OCC1=CC=CC=C1 HLXCXOQXUDRJLF-JKBZPBJLSA-N 0.000 description 1
- JWGUXURWURCTEG-UHFFFAOYSA-N benzyl 2-azaspiro[4.5]decane-3-carboxylate;hydrochloride Chemical compound Cl.C1C2(CCCCC2)CNC1C(=O)OCC1=CC=CC=C1 JWGUXURWURCTEG-UHFFFAOYSA-N 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 229920001429 chelating resin Polymers 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000000259 cinnolinyl group Chemical group N1=NC(=CC2=CC=CC=C12)* 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000003026 cod liver oil Substances 0.000 description 1
- 235000012716 cod liver oil Nutrition 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- VBWIZSYFQSOUFQ-UHFFFAOYSA-N cyclohexanecarbonitrile Chemical compound N#CC1CCCCC1 VBWIZSYFQSOUFQ-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007257 deesterification reaction Methods 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 239000002934 diuretic Substances 0.000 description 1
- 229940030606 diuretics Drugs 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 239000008298 dragée Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002081 enamines Chemical class 0.000 description 1
- LJYCJYJAOWYANE-UHFFFAOYSA-N ethyl 2-benzoylprop-2-enoate Chemical compound CCOC(=O)C(=C)C(=O)C1=CC=CC=C1 LJYCJYJAOWYANE-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001077 hypotensive effect Effects 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 125000003453 indazolyl group Chemical group N1N=C(C2=C1C=CC=C2)* 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- DYEUURKCGUPUFV-UHFFFAOYSA-N methyl 1h-indole-2-carboxylate;hydrochloride Chemical compound Cl.C1=CC=C2NC(C(=O)OC)=CC2=C1 DYEUURKCGUPUFV-UHFFFAOYSA-N 0.000 description 1
- XUKJQVOYXYEVSK-UHFFFAOYSA-N methyl 2-acetamido-3-(2-oxocyclopentyl)propanoate Chemical compound COC(=O)C(NC(C)=O)CC1CCCC1=O XUKJQVOYXYEVSK-UHFFFAOYSA-N 0.000 description 1
- IGKDMFMKAAPDDN-UHFFFAOYSA-N methyl 2-acetamido-3-chloropropanoate Chemical compound COC(=O)C(CCl)NC(C)=O IGKDMFMKAAPDDN-UHFFFAOYSA-N 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000004593 naphthyridinyl group Chemical group N1=C(C=CC2=CC=CN=C12)* 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 125000006502 nitrobenzyl group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- LEVJVKGPFAQPOI-UHFFFAOYSA-N phenylmethanone Chemical group O=[C]C1=CC=CC=C1 LEVJVKGPFAQPOI-UHFFFAOYSA-N 0.000 description 1
- 125000004592 phthalazinyl group Chemical group C1(=NN=CC2=CC=CC=C12)* 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 125000001042 pteridinyl group Chemical group N1=C(N=CC2=NC=CN=C12)* 0.000 description 1
- 125000000561 purinyl group Chemical group N1=C(N=C2N=CNC2=C1)* 0.000 description 1
- 125000004309 pyranyl group Chemical group O1C(C=CC=C1)* 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000002600 sunflower oil Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000005490 tosylate group Chemical group 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000563 toxic property Toxicity 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- LEIMLDGFXIOXMT-UHFFFAOYSA-N trimethylsilyl cyanide Chemical compound C[Si](C)(C)C#N LEIMLDGFXIOXMT-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 230000000304 vasodilatating effect Effects 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/30—Indoles; Hydrogenated indoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring
- C07D209/42—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/52—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring condensed with a ring other than six-membered
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/54—Spiro-condensed
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/02—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link
- C07K5/022—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link containing the structure -X-C(=O)-(C)n-N-C-C(=O)-Y-; X and Y being heteroatoms; n being 1 or 2
- C07K5/0222—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link containing the structure -X-C(=O)-(C)n-N-C-C(=O)-Y-; X and Y being heteroatoms; n being 1 or 2 with the first amino acid being heterocyclic, e.g. Pro, Trp
Definitions
- racemate separation of amino acids via crystallization of diastereoisomeric salts is a widely used method (overview: Boyle, Quart. Rev. 25 (1971) 323).
- N-acylated amino acids crystallizes the salts with alkaloid bases and decomposes the uniform diastereoisomeric salts, e.g. B. by extraction of the N-acylamino acids from the acidified solution (J. Amer. Chem. Soc. 71 (1949) 2541, 3251).
- the procedure can also be reversed and crystallize amino acid esters or amides with optically active acids (Chem. Ber. 86 (1953) 1524).
- optically active compounds such as 10-camphorsulfonic acid, abietic acid or tartaric acid or their O-derivatives. This procedure is particularly appropriate when optically active amino acid esters are to be used as starting compounds for further syntheses. In this case, it is disadvantageous to first produce an N-acyl compound, then to carry out the racemate separation via salt formation with optically active bases, to split off the acyl residue and then to esterify the free amino acid.
- N-acyl derivatives of optically active R- or S-amino acids which contain a phenyl nucleus, e.g. S-phenylalanine, tyrosine or tyrosine-O derivatives are suitable.
- Suitable solvents usually cause the (S, S) or (R, R) salts to precipitate spontaneously, while the (S, R) and (R, S) salts remain in solution. More than 95 percent enrichment can be achieved in a single step, and recrystallization once leads in high yield to the optically uniform salts, which are broken down in a known manner.
- a particularly preferred process variant is characterized in that the salts of racemic bicyclic esters of the formulas Ia and Ib, in which the two bridgehead hydrogen atoms are cis-configured and the COOR group is endo-oriented to the bicyclic ring system, are preferably separated off in crystalline form .
- Suitable imino-a-carboxylic acid esters are, in particular, hydrogenolytically or hydrolytically cleavable esters with aliphatic, alicyclic or araliphatic alcohols, as described, for example, in Houben-Weyl, Methods of Organic Chemistry, Vol. XV / 1, Stuttgart 1974, on page 314- 427 or by Bodanszky et al. in “Peptide Synthesis”, 2nd edition (1976), John Wiley & Sons are described.
- Esters of the formula Ia + Ib are preferred, in which R represents alkyl having 1 to 6 C atoms, cycloalkyl having 4 to 8 C atoms or aralkyl having 7 to 13 C atoms, which may optionally be substituted by N0 2 , in particular alkyl esters with up to 4 alkyl carbon atoms and aralkyl esters such as benzyl, nitrobenzyl or benzhydryl esters.
- N-acylated aminocarboxylic acids containing a phenyl nucleus are N-acyl derivatives of R- or S-phenylalanine, -C-phenylglycine and tyrosine.
- N-acyl protective groups As N-acyl protective groups, the z. B. Houben-Weyl Vol. XV / 1, pages 46-305 or in Bodanszky et al., "Peptide Synthesis", 2nd edition (1976), John Wiley & Sons described conventional NH 2 protective groups. Alkalnoyl having 1 to 6 carbon atoms, in particular formyl, tert-butoxycarbonyl and benzyloxycarbonyl, are preferred.
- Any free OH groups that may be present can optionally be O-alkylated by alkyl having 1 to 6 carbon atoms, in particular methyl, ethyl or tert-butyl, by benzyl or other OH protective groups customary in peptide chemistry (see, for example, Houben-Weyl , Vol. XV / 1 or Bodanszky et al., "Peptide Synthesis", 2nd edition (1976), John Wiley & Sons).
- Aprotic organic solvents such as e.g. Esters, ethyl acetate, cyclohexane, tetrahydrofuran, but alcohols with up to 6 carbon atoms can also be used.
- Octahydroindole-2-carboxylic acid is known from U.S. Patent 4,350,704.
- 2-Azabicyclo [3.3.0] octane-3-carboxylic acid is the subject of German patent application DE-A-3 226 768 and 2,3,3a, 4,5,7a-hexahydro [1H] indole-2-carboxylic acid is the subject of German patent application DE-A-3 210 496.
- Octahydroisoindole-1-carboxylic acid and 3-azabicyclo [3.3.0] octane-4-carboxylic acid are the subject of German patent application DE-A-3 211 676.
- Racemic bicyclic cis, endo-imino-a-carboxylic acids of the formulas la + Ib, in which C and B 2 are hydrogen and A and B 1 together mean the chain mentioned, can be obtained, for example, from enamines of a cycloalkanone and N-acylated ⁇ -halogen ⁇ -amino-carboxylic acid esters of the formula IV, in which X 'for a nucleofugic group, preferably chlorine or bromine, Y' for alkanoyl with 1 to 5 C atoms, aroyl with 7 to 9 C atoms or other, customary in peptide chemistry , protecting groups which can be removed with acid and R 4 represents alkyl having 1 to 5 carbon atoms or aralkyl having 7 to 9 carbon atoms or with acrylic acid esters of the formula V, in which Y 'and R 4 are as defined above, by converting these into compounds of the formula VI in which A, B 1 , R 4 and Y
- Racemic bicyclic imino-a-carboxylic acids of the formulas la and Ib, in which A and B 1 are hydrogen and B 2 and C together mean the chain mentioned, can be obtained, for example, from compounds of the formula VIII in which the bridgehead H atoms are cis- or trans-oriented to one another and B 2 and C have the above meaning.
- These compounds of formula VIII are acylated in a known manner, an aliphatic or aromatic acyl radical, preferably an acetyl or benzoyl radical is bound to the nitrogen atom, and the N-acylated compounds obtained in an aliphatic alcohol, preferably an alcohol having 1 to 4 carbon atoms, in particular methanol, in the presence of a conductive salt, preferably in Temperatures in the range of 0 ° to + 40 ° C to form a compound of formula IX, wherein B 2 and C have the above meaning and
- R 5 (C 1 -C 4 ) alkyl means anodically oxidized (analogous to Liebigs Ann. Chem. 1978, p. 1719).
- the compound of general formula IX obtained is with trimethylsilyl cyanide according to Tetrahedron Letters 1981, p. 141 in a hydrocarbon, halogenated hydrocarbon, in ether or in THF at temperatures in the range from -60 ° C to + 20 ° C, preferably -40 ° C to + 0 ° C in the presence of a Lewis acid such as ZnCl 2 , SnCl 2 , SnCl 4 , TiCl 4 , BF 3 etherate, preferably BF 3 etherate, reacted and the compound of formula X obtained in which the bridgehead H atoms are cis or trans to one another, the CN group being in the cis position to the bridgehead H atom on the C atom (4+ n) and in which n, B 2 and C have the abovementioned meaning, after purification and separation of the diastereomer mixture by recrystallization or column chromatography by the action of acids or bases in a known manner to a compound
- the invention further relates to optically uniform compounds of the formula Ia or Ib, in which the two bridgehead hydrogen atoms are cis-configured, the COOR group is endo-oriented to the bicyclic ring system which has the C atom R at the COOR group or S is configured,
- the invention further relates to diastereomeric salts of a bicyclic cis, endo-imino-a-carboxylic acid ester of the formula la or Ib, in which A, B 1 , B 2 , C and R have the meanings defined as preferred above and an N-acylated, optically active R- or S-aminocarboxylic acid which contains a phenyl nucleus and which, as defined above, is protected.
- Aryl as in the following, is preferably to be understood as meaning optionally substituted phenyl or naphthyl.
- Alkyl can be straight-chain or branched.
- thienyl benzo [b] thienyl, furyl, pyranyl, benzofuryl, pyrrolyl, Imidazolyl, pyrazolyl, pyridyl, pyrimidinyl, pyridazinyl, indazolyl, isoindolyl, indolyl, purinyl, quinolizinyl, isoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolyl, cinnolinyl, pteridinyl, oxazolyl, isoxolylyl isylazylyl, isoxazylyl, isoxazylyl, isl
- residues can also be partially or completely hydrogenated.
- R 1 stands for a side chain of a protected naturally occurring a-amino acid, such as, for example, protected or optionally substituted Ser, Thr, Asp, Asn, Glu, Gln, Arg, Lys, Hyl, Cys, Orn, Cit, Tyr, Trp, His or Hyp
- the groups customary in peptide chemistry are preferred as protective groups (cf. Houben-Weyl, Vol. XV / 1 and XV / 2).
- the known amino protective groups but in particular (C 1 -C 6 ) alkanoyl, are preferred.
- Preferred O-protecting groups for tyrosine are methyl or ethyl.
- optically uniform imino-a-carboxylic acid esters of the formulas Ia or Ib according to the invention By reacting the optically uniform imino-a-carboxylic acid esters of the formulas Ia or Ib according to the invention with optically uniform compounds of the formula III, the targeted synthesis of optically uniform compounds of the formula Ia or IIb has become possible.
- the desired compounds of the formulas IIa or IIb are obtained in high yields without the use of expensive separation techniques.
- the condensation step is carried out according to one of the common, low-racemization processes of peptide synthesis, as described, for example, in Houben-Weyl, Volume XV, or in "The Peptides, Analysis, Synthesis, Biology, Vol. 1 Major Methods of Peptide Bond Formation, Part A” , Gross, Meierhofer, Academic Press NY (1979).
- reactive functional groups in the radical R 1 are based on the known methods of peptide chemistry (eg Houben-Weyl, Volume XV or Bodanszky et al. In “Peptide Synthesis”, 2nd edition (1976), John Wiley & Sons) must be temporarily protected.
- optically uniform compounds of the formula IIa or IIb are obtained in a manner known per se after splitting off R and, if appropriate, R 2 in high yield without the use of complex separation techniques.
- the compounds of the formula IIa or IIb and their salts have long-lasting, intensive hypotensive effects. They are potent inhibitors of the angiotensin converting enzyme (ACE) and can be used to combat high blood pressure of various origins.
- ACE inhibitors of this type are e.g. known from U.S. Patent 4,344,949, EP-A-49 658, EP-A-46 953, EP-A-50 800 and EP-A-79 022.
- the oral dose is usually 1-500 mg, preferably 1-100 mg per single dose in a normal weight adult patient. It can also be increased in severe cases, since no toxic properties have been observed to date. A lowering of the dose is also possible and is particularly advisable if diuretics are administered at the same time.
- the compounds according to the invention can be administered orally or parenterally in a corresponding pharmaceutical preparation.
- the active compounds are mixed with the usual additives such as carriers, stabilizers or inert diluents and brought into suitable dosage forms by conventional methods, such as tablets, dragées, push-fit capsules, aqueous, alcoholic or oily suspensions or aqueous, alcoholic or oily solutions .
- inert carriers e.g. Gum arabic, magnesium carbonate, potassium phosphate, milk sugar, glucose or starch, in particular corn starch.
- the preparation can take place both as dry or moist granules.
- Vegetable or animal oils, such as sunflower oil or cod liver oil are suitable as oily carriers or solvents.
- the active compounds or their physiologically tolerable salts are brought into solution, suspension or emulsion, if desired with the usual substances such as solubilizers, emulsifiers or other auxiliaries.
- suitable solvents for the new active compounds and the corresponding physiologically tolerable salts are: water, physiological saline or alcohols, for example ethanol, propanediol or glycerol, in addition also sugar solutions such as glucose or mannitol solutions, or a mixture of the various solvents mentioned or solutions.
- the basic water phase is in the vacuum. freed from methylene chloride and with conc. Acidified HCI. The precipitated Z-Phe-OH is washed with water and dried.
- the free iminocarboxylic acids can be prepared from the esters by saponification or hydrogenolysis.
- the precipitated dicyclohexylurea is filtered off with suction, the mixture is concentrated, taken up in 1 l of ethyl acetate and shaken out with 3 ⁇ 500 ml of 5 percent NaHCO 3 solution. The organic phase is concentrated.
- hydrochloride decomposition from 120 ° C
- the benzyl ester is catalytically hydrogenated in 50 ml of ethanol under normal pressure on PdiC. After filtering off the catalyst and distilling off the solvent, a solid residue remains, which is digested with diethyl ether / petroleum ether and dried.
- the mixture is warmed to room temperature, 100 g of ice are added, the mixture is extracted twice with 500 ml of ethyl acetate, the organic phase is dried over sodium sulfate, concentrated in vacuo and the residue is subjected to vacuum distillation.
- Example 16C Half of the amino acid nitrile obtained in Example 16C is mixed with 250 ml of 4N hydrochloric acid and heated under reflux for 4 hours. Traces of escaping hydrocyanic acid are suitably eliminated (freezing out, absorption in basic iron (II) salt solution. The solution is neutralized, brought to dryness and extracted several times with n-butanol. The evaporation residue of the organic phase is
- Half of the amino acid nitrile obtained according to Example 16C is taken up in 70 ml of benzyl alcohol.
- a slow HCl gas stream is passed through the solution at room temperature for 5 minutes, held at room temperature for 2-3 hours, concentrated well in vacuo, mixed with aqueous sodium bicarbonate solution until pH 8.5 is reached and the benzyl ester is extracted into ethyl acetate.
- the organic phase is dried, mixed with an equivalent amount of ethereal hydrochloric acid and concentrated.
- the residue crystallizes from diisopropyl ether and can be recrystallized from methylene chloride / diisopropyl ether.
- Example 16 E The racemic hydrochloride obtained according to Example 16 E is subjected to a resolution of racemate analogously to Examples 1 D and E.
- Racemic cis-2,3,3a, 4,5,7a-hexahydro [1H] -indole-2-carboxylic acid methyl ester hydrochloride (obtainable analogously to the procedure described in German patent application P 3 210 496.0) is analogous to Examples 1 D and E. subjected to a resolution.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Indole Compounds (AREA)
- Peptides Or Proteins (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84100858T ATE31720T1 (de) | 1983-01-31 | 1984-01-27 | Verfahren zur racemattrennung optisch aktiver bicyclischer imino-alpha-carbonsaeureester und verwendung der so erhaeltlichen verbindungen zur synthese von carboxyalkyldipeptiden. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3303112 | 1983-01-31 | ||
DE3303139 | 1983-01-31 | ||
DE19833303139 DE3303139A1 (de) | 1983-01-31 | 1983-01-31 | Verfahren zur herstellung von carboxyalkyldipeptiden |
DE19833303112 DE3303112A1 (de) | 1983-01-31 | 1983-01-31 | Verfahren zur racemattrennung optisch aktiver bicyclischer imino-(alpha)-carbonsaeuren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0115345A1 EP0115345A1 (fr) | 1984-08-08 |
EP0115345B1 true EP0115345B1 (fr) | 1988-01-07 |
Family
ID=25807929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84100858A Expired EP0115345B1 (fr) | 1983-01-31 | 1984-01-27 | Procédé de dédoublement d'esters d'acides imino-alpha-carboxyliques bicycliques optiquement actifs et utilisation des composés ainsi productibles pour la synthèse de carboxyalkyldipeptides |
Country Status (17)
Country | Link |
---|---|
EP (1) | EP0115345B1 (fr) |
JP (1) | JPH0788358B2 (fr) |
KR (1) | KR910001438B1 (fr) |
AU (1) | AU566589B2 (fr) |
CA (2) | CA1283249C (fr) |
DE (1) | DE3468415D1 (fr) |
DK (1) | DK174386B1 (fr) |
ES (2) | ES529272A0 (fr) |
FI (1) | FI88153C (fr) |
GR (1) | GR82650B (fr) |
HU (1) | HU191120B (fr) |
IE (1) | IE56654B1 (fr) |
IL (1) | IL70830A (fr) |
MA (1) | MA20020A1 (fr) |
NO (1) | NO166641C (fr) |
NZ (1) | NZ206980A (fr) |
PT (1) | PT78036B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4500713A (en) * | 1982-09-23 | 1985-02-19 | Usv Pharmaceutical Corporation | Therapeutic dipeptides |
DE3345355A1 (de) * | 1983-12-15 | 1985-06-27 | Hoechst Ag, 6230 Frankfurt | Verfahren zur racematspaltung bicyclischer imino-(alpha)-carbonsaeureester |
AU581919B2 (en) * | 1984-07-30 | 1989-03-09 | Schering Corporation | Process for the preparation of cis, endooctahydrocyclopenta (b) pyrrole-2-carboxylate |
HU192914B (en) * | 1985-02-11 | 1987-07-28 | Richter Gedeon Vegyeszet | Process for producing new 3-/substituted amino/-5-phenyl-2/3h/-furanone derivatives and pharmaceutically acceptable salts |
FR2620703B1 (fr) * | 1987-09-17 | 1991-10-04 | Adir | Procede de synthese industrielle de l'acide perhydroindole carboxylique - 2(2s, 3as, 7as). application a la synthese de carboxyalkyl dipeptides |
HU904967D0 (en) * | 1988-04-22 | 1991-01-28 | Hoechst Ag | Process for producing new azabicyclo(3.3.o)octane-3-carboxylic acid-octylesther derivatives |
US6407262B1 (en) | 2001-11-21 | 2002-06-18 | Brantford Chemicals Inc. | Process for the preparation of Ramipril |
WO2006059347A2 (fr) * | 2004-12-01 | 2006-06-08 | Morepen Laboratories Limited | Procede de preparation ameliore de ramipril |
CN102984945B (zh) | 2010-04-20 | 2014-08-20 | 凯瑞斯德生化(苏州)有限公司 | 一种环烯基在β位取代的丙氨酸的不对称合成方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2503155A2 (fr) * | 1980-10-02 | 1982-10-08 | Science Union & Cie | Nouveaux imino diacides substitues, leurs procedes de preparation et leur emploi comme inhibiteur d'enzyme |
IE52663B1 (en) * | 1980-04-02 | 1988-01-20 | Warner Lambert Co | Substituted acyl derivatives of octahydro-1h-indole-2-carboxylic acids |
US4374847A (en) * | 1980-10-27 | 1983-02-22 | Ciba-Geigy Corporation | 1-Carboxyalkanoylindoline-2-carboxylic acids |
-
1984
- 1984-01-25 HU HU84312A patent/HU191120B/hu unknown
- 1984-01-27 DE DE8484100858T patent/DE3468415D1/de not_active Expired
- 1984-01-27 FI FI840350A patent/FI88153C/fi not_active IP Right Cessation
- 1984-01-27 EP EP84100858A patent/EP0115345B1/fr not_active Expired
- 1984-01-28 KR KR1019840000396A patent/KR910001438B1/ko not_active IP Right Cessation
- 1984-01-30 GR GR73651A patent/GR82650B/el unknown
- 1984-01-30 NZ NZ206980A patent/NZ206980A/en unknown
- 1984-01-30 ES ES529272A patent/ES529272A0/es active Granted
- 1984-01-30 NO NO840350A patent/NO166641C/no not_active IP Right Cessation
- 1984-01-30 MA MA20241A patent/MA20020A1/fr unknown
- 1984-01-30 PT PT78036A patent/PT78036B/pt unknown
- 1984-01-30 IL IL70830A patent/IL70830A/xx not_active IP Right Cessation
- 1984-01-30 DK DK198400415A patent/DK174386B1/da not_active IP Right Cessation
- 1984-01-30 IE IE210/84A patent/IE56654B1/en not_active IP Right Cessation
- 1984-01-30 CA CA000446349A patent/CA1283249C/fr not_active Expired - Lifetime
- 1984-01-31 AU AU23933/84A patent/AU566589B2/en not_active Expired
- 1984-04-04 ES ES531284A patent/ES531284A0/es active Granted
-
1988
- 1988-09-06 CA CA000576609A patent/CA1317067C/fr not_active Expired - Lifetime
-
1991
- 1991-01-30 JP JP3027801A patent/JPH0788358B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IE56654B1 (en) | 1991-10-23 |
NO840350L (no) | 1984-08-01 |
GR82650B (fr) | 1985-02-07 |
ES8500228A1 (es) | 1984-10-01 |
JPH0788358B2 (ja) | 1995-09-27 |
AU566589B2 (en) | 1987-10-22 |
ES8501759A1 (es) | 1984-12-01 |
IL70830A (en) | 1988-02-29 |
CA1317067C (fr) | 1993-04-27 |
FI88153C (fi) | 1993-04-13 |
DK41584D0 (da) | 1984-01-30 |
HUT34159A (en) | 1985-02-28 |
DK174386B1 (da) | 2003-01-27 |
EP0115345A1 (fr) | 1984-08-08 |
ES531284A0 (es) | 1984-12-01 |
NO166641C (no) | 1991-08-21 |
IE840210L (en) | 1984-07-31 |
CA1283249C (fr) | 1991-04-16 |
FI840350A0 (fi) | 1984-01-27 |
JPH0517439A (ja) | 1993-01-26 |
DK41584A (da) | 1984-08-01 |
NZ206980A (en) | 1988-05-30 |
FI840350A (fi) | 1984-08-01 |
FI88153B (fi) | 1992-12-31 |
IL70830A0 (en) | 1984-04-30 |
DE3468415D1 (en) | 1988-02-11 |
ES529272A0 (es) | 1984-10-01 |
NO166641B (no) | 1991-05-13 |
AU2393384A (en) | 1984-08-02 |
KR910001438B1 (ko) | 1991-03-07 |
MA20020A1 (fr) | 1984-10-01 |
HU191120B (en) | 1987-01-28 |
PT78036A (de) | 1984-02-01 |
PT78036B (de) | 1986-05-30 |
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